Question about Bite Away Cobra

The type of contact surface does not matter. The only important thing is that you press the pin firmly on the stitch until it switches off and if possible at the higher level. It has to hurt a little for it to do any good. HK, Physicist.

I have the one with ceramic. But I didn't look at which one I was ordering. The heat transfer works perfectly and the effect keeps its promise. The mosquitoes love me and I feel much better with the Biteaway than with Parapic and the like.
My friend has even had good results with it on fever blisters.
I can only recommend this one.